Going home: Secretary of State Hillary Clinton left New York-Presbyterian Hospital on Wednesday after being treated for a blood clot

Hillary Clinton will testify in front of Congress about the terrorist attack on the American consulate in Benghazi, Libya - despite receiving a concussion and being hospitalized for a blood clot, it was revealed on Thursday.

The Secretary of State cancelled appearances before the Senate Foreign Relations Committee and the House Foreign Affairs Committee after she fainted and hit her head on December 9.

She sent two aides to testify in her place.

Some conservatives initially claimed she was using the health issue to dodge testifying on the contentious issue.

Republicans have been battering the Obama Administration and any officials associated with the September 11 terrorist attack on the U.S. consulate, which killed four Americans, including Ambassador Chris Stevens.

UN Ambassador Susan Rice, who was reportedly President Barack Obama's first choice to replace Clinton as Secretary of State, was forced to withdraw herself from potential nomination after she came under heavy criticism for referring to the attack as a riot caused by Libyans furious about an anti-Islamic video that was released by an American director.

The Washington Post reports that Clinton 'remains committed' to appearing in front of the Congressional committees, though no date has been set.

The new House Foreign Affairs Committee chairman, Rep Edward Royce, said the government accountability report on the attack points to 'an unacceptable failure of leadership' leading up to the attack, according to the Post.

Some Senate Republicans have threatened to block the confirmation of Sen John Kerry, Clinton's successor as Secretary of State, until Clinton testifies.

Clinton has long said she planned to leave the job as the nation's top diplomat after Obama's first term.

Clinton, 65, was released from a New York City hospital on Wednesday, days after doctors discovered a blood clot between her skull and her brain.

Her physicians say she suffered no stroke or neurological damage as a result of the clot. She is expected to make a full recovery.

They say it formed after she hit her head when she fainted following a bout with a stomach virus.

Clinton's illness led her to cancel an overseas trip and scheduled testimony before Congress about the attack on the U.S. Consulate in Benghazi, Libya.

When her absence was reported, several pundits and newspapers accused Clinton of making her illness seem worse than it was to dodge questions from lawmakers over the attack, which has been blamed on lax security installed by the State Department.

The New York Post called her concussion a 'head fake.'

Florida Rep Allan West said Clinton had a case of the 'Benghazi flu,' while Fox News contributer Charles Krauthammer dubbed it an 'acute Benghazi allergy.'